Planoorahi co



F. TESEIRO.

TRACTOR.

APPLlcAloN FILED oma. 19u.

3 SHEETS-SHEET 2.

wilma dummy THB LUMBIAv PLANOORAPH CDU WASHXNOTDM. IL C.

F. TESEIRO.

TRACTOR.

APPLICATION FILED DECl. i917.

" 1,311,726, Patented July 29, 1919.

3 SHEETS-SHEET 3.

THB CuLUMBlA PLANOGRAPM C0.. WASHINGTON. c.

mentary wheels.

- beamszbyf means of `endflanges 12 Vand 13 UNITED sTATEs PATENT oEEiCE.

FRANCISCO 'rEsEma or UNIN DE REYES, CUBA.

To all whom it may concern.'

. Be it known that I, FRANCISCO Trissino, a citizen of the Republic of Cuba, and `a resident of Unin de Reyes, Province of Matanzas, Republic of Cuba, have invented certain new and useful Improvements in Tractors, of which the `following is a full, clear, and exact specification.

This invention relates to tractors employed for performing the various cultivating operations.

The-'object of this invention is to provide certain named improvements in the construction of tractors in order to adapt them to perform ytheir loperation more efficiently.

re 1 is ya top plan view of a tractor provided with vthe improvements constituting this invention.

Fig'. 2 is a side'elevation of the said trac# 30` vehicle'ybigindependently mounted on Fig.- 3l is a vertical cross-section online sr-s of Eig. 1;

Fig44 is aperspective view partly in section1 showing-the mounting of the supple- "l Thistractor' comprises an inner frame forn'ied by a plurality of'metallic beams 1,

2,3,"4 secured toyl a horizontalring 5, the shafts 6 and 7 of the driving wheels 8 of the bearings "1Q located underneath' each Vone of thebeams 1, 2,3, '4, which bearings are adjustable within, curved guide-casings 11. uThese guide-casings arexed beneath said whichlaresecured to the bottom ofthe Vbeams by bolts 14, the adjustable movement of each bearing 10y within the respective guide-casing 1'1 being effected by means of avertical wormgear 15 rotatably mounted on lugs 16 .which project laterally from each bearing, and meshing with a rack 17 formed on a4 lateral rim 18 :secured at one side of each guide-casing 11, each worm gear 15 being' operated by meansof a hand `wheel Y 19Vprovide'd` at the upper endof a rod `2() forming any extension of Ithe axleI of each worm gearv15. Said bearingslO are preyvented from having a lateral movement within the 'guidelcasings 11 by means of set kscrews 21 projecting from the bearings 'through slots 22 in guide-casings 11, 'and nutsj23jfscrewedon vthethreaded ends of saidgscrewssfe M01-Qn 1S given* tothe driving wheels 8 Speceation of Letters latant,

TRACTOR.

Patented Juiyaaieie.

Application led December 8, 1917. Serial No. 206,217'. .i

from a motor 24 securely mounted on crossbars 25 secured to the intermediate beams 2 bed is movable in ,an

being provided with. an annular `horizontal plate 32 secured by means of screw 33 to the vertical portionofsaidfring 31 .(Fig. 4). Sills "35 `connectedtogether by end plates 37 and `intermediate cross-bars138 vare fixed to said ring bymeans of angular plates 34. Each one of these structures carries a couple of supplementarywheels 39 and 40 which may be raised or lowered as may be desired. The-sills 35-.are provided with a horizontal shaftV 41 which hasfsecured thereto at its intermediate portion arms 42 and43 having -a fork at theirend to support a pin 44 to which is pivotally secured an arm 45..y A horizontal bar 46 passes through openings in said arms 45 and is prevented from long1- tudinal'movement by pins 47, said bar 46 having eachend terminating in a collar 48 through which passes a set screw 49. These collars .embrace a 4vertical `sleeve 450 through the interior of which passes a vertical bar 51 prevented from moving downward by means of afpin 52. 1 The bars are outwardly curved at their lower ends to form 4horizontal shafts 53. Mounted on these horizontal shafts 53 are the-ground bearing wheels 39 and ,40

which present on their periphery ametallic tire of sharp edge y54 to enter into the ground and to serve. as ya guide to the1wheel in the traveling direction? of-the vehicle.y The .vertical sleeves 50 are loosely mounted by means of peripherall recesses thereon within j the collars 55v formed at the vertex of V-shaped brackets 56 which are secured `by means `of screws to the bottom of sills 35. On one of the ends of Ahorizontal shaft 41 is secureda lever varm 57 to which isqpivote'd a small crank lever 58 `to operate a pawl 59 acted upon ,by -aspring and engaging a ratchety 60 secured to lthe outer side of sills 35. By this means .the 4wheelsl 39 and 40 are adjusted,

i upwardly 'extended-to form avertical rackV To the sills are Ysecured brackets 61 surrounding the sleeve 50 above-the collar On eachV one of sills fthereis 'Iiiouiited an agricultural implement adapted to perf-Y form the cultivatingi operation which 1s desired, suchas for instance a plow grate. and'moldbo'ard 62 which is securedY to t'he"` lower -end of a vertical@baril63V passing 69. The two racks' 6 9 have their teeth extending vtoward opposite sides of 'the machinein order that they may be moved in opposite directions siinultaneouslyby a hori- Zontal shaft 70 which extends fromthe rear nto `the frontY ofVr the tractor and mounted thereon by means; of twov merightfposts 71 and72; which are secured on the connecting A' 'end-"plates -37. YThe yshaft 70.is slightly n two beveled-pinionsand 74 fixedv to saidV inclined with` respect yto the longitudinal 'axle'of the'tractor, so that 'it may beilocated in front of the opposite geared faces .of 'racks (S9-in order-that they may mesh with i shai't 0:1 The shaft 7 0 carries'onreach end a -hand' wheel? 5, in order torrais'e orf lower thefor'vvard or *rear*V plows of the tractor yas lthe case may-be.

' In ordervtof rotate tlieinner frame A'on the outer frame or viceversa; there is provided o 'n'eal'ch end nstructure la hand actuated mech*- ani'sm which# consists ofVv a cou-ple of -gear Y pinions 7 6 arrangedat oppositexends of the 'inner ring 5 'andsaid pinion's76rrmesh with a geared *crown '77'` shown on the upper. lface of said ring.Vv The pinions are vfixed at'the ends of short horizontal shafts 7 8' mountedon bearings `7 9, 80, one jofwhichisiixed on the vouter ring 31v andthe otheronev on a 'cross-'bar 81 xedfbetween the sills 35 of Vleach end structure. conn'ected'to i the outer kring 331. zTheshaft 78 is actuatedby means 'of *an oblique vshaft 81 supported 'on' a Y bracket projecting fromthe upright post 7l "which -isrprovided at itsvv upperl end Witha hand Vwheel y182,each oblique'sha'ft T81 vbeing connected 'with Leach-horizontal shaft? 8 by means of'a uni-versaljoint `83. .I'On vthe end portion oi? eachV` structure. there is fixed a seat 84 for the operator.k

' The operationV :of the improved` tractor'is as `follows: The tractor is made to travel on-a straight line in. such "a Amanner that one of the driving wheels 1Sm'aypass on the :furrow previously made, towhich end, ,since the wheel advancing in this mannerwill ybe V.lowe` ,r ,than the other, l the :other .''treading wheel should be lowered with respectto .theV

Y iframe. This is accomplished by means of the handles 19,'which are actuated to turn the f `worm gears l5 mounted on bearings 10 meshing withracks 1.7 of the guide-casing 11.. This4 causes said bearings l.to 4descend vthrlmghthe guide-casings" 11 carrying vwith Supthem their respective driving wheel.v posing that the tractor is advancing to the leit of the drawingon Fig'. l, in J which disposed behind the driving wheels. Thereforesthose plows and the Ysupplemental wheels 39 and 40 must bein. lowered position, and raised position, respectively. `When the tractor reaches the end oi' the course in straight line yit must be moved backward.y diverting slightly .to `follow a l movement the plows that work arethe ones course parallel to the previous Vone,.and\to` do this, the Virst thing thatvthe operator mustdo from his .rear seatk 84C, :isY tolraise the rearwheels 39. Vand Vl0 tok which end he will move downward the lever 'armi 57 andjpressfthe small crank lever isothat pawl 59 may go over the` geared --segmentGO The operator now comes ydown 4from seat 84 andoccupies the other simil-arseat'a-tvfthe opposite end lof the tractongandhe will lowerftheV wheels 39 a'ndfl'O of7 this'end until they bear on'the ground, whereupon he: will slightly actuatethe hand wheel 7 5 of the adjacent end of shaft 70 thus slightly lowering'lthe agricultural2 implements 62of the same end, whereby-the agriculturalfimplementsv62 of the opposite end,-that were 1 previously workingfthe ground.v are -corree spondingl-yraised. Nowinorder yto divert the directionv of th'emachine, the oblique K' shaft. 81 Vof the same end is vrotatedby :means i of hand wheel182,.thus rotating the adjacent geared pinion 76,/ which on meshingjwith geared crown V7"(` rotate'sthe innert-ring g5V o i within the outer ringl and ftherewithi all the inner `:frame formed Vbythe beams 1,'2,

3, ii-and Vwith these-thetreading -wheels S.k 110 Y jIfVtlie motor is now .operated and the trac/- tor moved rearwardly, the. machine will di'- vert until reaching the newA furrow line parallel to ther-first oneiand onceyonV 'theft newline, the inner Vrin'g isrotated Vfor-the 115 same angular distance sin" an opposite/1 di-V Y rection so that the-tractorhmay rest iin a ldirection parallel to the previous one. The rearward movement isnow` continued, the

'agricultural implements i that arel nowjin 120 "front Vof thetractorpbeing completely low-,V ered in order that'same be the onesatv Werl; now, '.andin ythis manner thev oper-ationfis continued until the gtractorreaches the-end of the linev or Ythe boundary f t` he lai 1d,V V125 whereupon the operation'isjrepeated. It isjobviousthat 'the form yof the? frames lof thewen'gine, vand even -that :of theoperating mechanisms of the lsupplemental wheels ;V

fand vragricultural implements'v used-08311@ be 130 varied without altering the spirit of the invention, which is as pointed out in the following claims.

What I claim is:

1. A tractor including an inner and an outer frame connected together, horizontal bars rotatably mounted in said outer frame, arms secured to said shaft, Wheels, horizontal bars connecting said wheels, links interposed betweenl the horizontal bars and arms, and means for rotatin .the shafts.

2. In a tractor, a main rame having a ring, an inner frame having a ring mounted and arranged toturn in the ring of the main frame, two pairs of vertically arranged segmental guide casings secured to and depending fromthe inner frame and each provided with a rack; bearings Vmounted for vertical arcuate movement in said guide casings, shafts each mount- Gopies of this patent may be obtained for ed in one of said bearings and havincgl a worm engaging one of said racks, an a pair of tractor wheels each having a 'shaft mounted in two of said bearings, so that either of said tractor wheels may be raised or lowered independently of the other.

3. In a tractor, a frame, a transverse shaft mounted in the sides of said frame and provided with arms, a lever to turn said shaft, means to lock said lever, vertical sleeves secured to said frame for vertical movement, trail wheels having axles provided with yvertical portions mounted in said sleeves, a horizontal bar connecting said sleeves, and links connecting said bar to the arms of the said shaft.

In witness whereof I aiX my signature.

FRANCISCO TESEIR-O.

iive cents each, 'by addressing the Commissioner of Patents, Washington, D. C. 

